550 SC-001 (COL0-MC2-F23) Unfortunately



    i cant send email from my exchange 2003 to Hotmail although i am not listed in other sites and i can send to yahoo and gmail. when i send email to Hotmail i receive this message.

    #5.5.0 smtp;550 SC-001 (COL0-MC2-F23) Unfortunately, messages from weren't sent. Please contact your Internet service provider since part of their network is on our block list. You can also refer your provider to>

    please i need you help send me to my email

    Sunday, June 03, 2012 7:27 AM